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Hong Kong Study: Pfizer-BioNTech Covid-19 Vaccine Produced Stronger Antibody Response Than Chinese-made Sinovac

Swarajya StaffSunday, June 20, 2021 4:02 pm IST
Sinovac
Sinovac
Sinovac

People who are vaccinated against Covid-19 with Pfizer BioNTech’s vaccine were found to have "substantially higher" levels of antibodies than those who received Sinovac vaccine, the South China Morning Post reported on Saturday (June 19), citing a major Hong Kong study.

The Hong Kong government-commissioned study was conducted by Hong Kong Univesity (HKU)’s school of public health. The study tracked the antibody responses of 1,000 people who received either vaccine. Supported by the Health and Medical Research Fund. The objective of the study was to estimate the incidence of natural infections over time and the level of population immunity due to infections and vaccinations.

“We do see substantially higher antibody responses in people who received the BioNTech vaccine, consistent with the higher levels of clinical protection reported in the large phase-three clinical trial of that vaccine, compared to the phase-three clinical trial of the Sinovac vaccine,” Benjamin Cowling, an epidemiologist with the University of Hong Kong (HKU), said.

Cowling also added that few individuals who received the Sinovac vaccine might need a third booster shot as well.

Hong Kong has administered more than 3 million doses of vaccines to residents since late February, comprising 1.7 million BioNTech jabs and 1.3 million Sinovac shots.

The BioNTech vaccine has been reported to have a 95 per cent efficacy rate, while the mark for Sinovac is 50.7 per cent.

Last week, health officials in Indonesia officials said that more than 350 medical workers have contract Covid-19 despite being vaccinated with Sinovac and dozens have been hospitalised.

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Pfizer-BioNTech Covid-19 Vaccine

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